Call it a convenient coincidence: on the same day Live Nation announced Gun N' Roses would play its Fillmore Silver Spring, competitor I.M.P. announced the return of its glam and heavy metal festival to Merriweather Post Pavilion.

The M3 Rock Festival, this year headlined by Night Ranger, Ratt, and Queensryche, will play Merriweather May 11 and 12. It's the fourth year at Merriweather for the festival.

M3 won't have overlapping sets this year - all bands will play one at a time on two separate stages.

The festival kicks off Friday with Night Ranger, Kix, Enuff Z'Nuff, In the Pink, and Let There Be Rock.